"""
正常的情况下，Point是类，p1是Point类的实例化。
"""
class Point:
    def __init__(self, x, y):
        self.x = x
        self.y = y

# 初始状态
p1 = Point(4, 5)
print('Point dict is {}'.format(Point.__dict__))
print('p1 dict is {}'.format(p1.__dict__))

